Pressing pump

By designing the first gap between the conical tube and the liquid lead pipe in the pressing pump, and using the slot structure between the sleeve and the receiving tube, the problem of poor deformation and sealing of the tapered tube in the traditional pressing pump is solved, and the normal pumping of the liquid and the stability of the liquid lead pipe is achieved.

CN222606755UActive Publication Date: 2025-03-14MAJESTY HLDG CO LTD
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Patent Information

Application Number
CN202421121836.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-21
Publication Date
2025-03-14
Estimated Expiration
2034-05-21

AI Technical Summary

Technical Problem

During the use of traditional pressing pumps, the contact between the liquid induction tube and the conical tube can easily lead to deformation of the conical tube, affecting the sealing effect between the pump beads and the conical tube, and making it difficult for liquid to pump out.

Method used

A pressing pump is designed, with a first gap between the conical tube and the liquid lead pipe, and through the slot structure between the sleeve and the receiving tube, the liquid lead pipe cannot directly generate force on the conical tube when it shakes, thereby maintaining the shape of the tapered tube and preventing the liquid lead pipe from falling off through the friction between the inner wall of the slot and the outer wall of the liquid lead pipe.

Benefits of technology

It effectively prevents deformation of the conical tube, improves the sealing between the pump beads and the conical tube, ensures the normal pumping of liquid, and prevents the liquid lead pipe from falling off.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN222606755U_ABST
    Figure CN222606755U_ABST
Patent Text Reader

Abstract

The pressing pump comprises a pump body and a liquid guide pipe, a pump chamber is arranged in the pump body, the pump body is connected with a bottle locking cap, a pump rod is arranged in the pump chamber, the upper end of the pump rod is connected with a bent nozzle, a liquid outlet channel is arranged in the bent nozzle, a locking cap is arranged on the pump body, a control valve is arranged on the lower portion of a liquid pumping assembly, and a ventilation opening is formed in the side wall of the pump chamber. A reset spring is arranged in the pump chamber, a containing pipe and a conical pipe are arranged at the lower end of the pump chamber, the first liquid inlet is formed in the lower end of the conical pipe, a pump bead is arranged between the containing pipe and the conical pipe, the lower end of the pump body is further connected with a sleeve, and an inserting groove is formed between the sleeve and the containing pipe. The first gap is formed between the inner wall of the liquid guide pipe and the outer wall of the conical pipe, so that the liquid guide pipe cannot directly generate acting force on the conical pipe when shaking, the conical pipe is not prone to deformation, the sealing performance between the pump bead and the conical pipe is good, and friction force can be generated between the inner wall of the inserting groove and the outer wall of the liquid guide pipe, so that the liquid guide pipe is not prone to falling off.
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Description

Technical Field

[0001] The utility model relates to the technical field of liquid pumps used for pumping products from containers, in particular to a pressing pump. Background Art

[0002] In the fields of personal care, cosmetics, medicine and household cleaning products, pumps are widely used as a convenient liquid dispensing device. Traditional pumps are usually composed of basic components such as pump body, pump rod, pump chamber, liquid extraction assembly and liquid outlet channel. These components work together, allowing users to easily extract and release liquid from the container by pressing the pump head.

[0003] The inventor has previously developed a lotion pump suitable for use with lotions with particles. Since one end of the liquid introduction tube is directly in contact with the outer wall of the narrow-mouthed conical tube of the pump ball mechanism, when the liquid in the bottle hits the liquid introduction tube and causes it to shake, the end of the liquid introduction tube will generate stress on the outer wall of the narrow-mouthed conical tube, which can easily cause the conical tube wall to deform, thereby affecting the sealing effect with the pump ball, resulting in difficulty in pumping out the liquid in the bottle when the pump head is pressed.

[0004] The utility model is made based on the above situation. Utility Model Content

[0005] The utility model overcomes the shortcomings of the prior art and provides a pressing pump which can prevent a tapered tube from being easily deformed, has good sealing performance between a pump ball and the tapered tube, and prevents a liquid introduction tube from falling off.

[0006] The utility model is realized by the following technical solutions:

[0007] A press pump comprises a pump body and a liquid inlet tube, wherein a pump chamber is arranged in the pump body, a bottle locking cap is connected to the pump body, a pumping assembly is arranged in the pump chamber and can move up and down therein so as to draw liquid out of the bottle upward, the pumping assembly comprises a pump rod, a curved nozzle which can drive the pumping assembly to move up and down is connected to the upper end of the pump rod, a liquid outlet channel is arranged in the curved nozzle, a locking cap which can limit the pumping assembly from leaving the pump chamber is arranged on the pump body, a control valve which can control the liquid in the pump chamber to be ejected from the liquid outlet channel is arranged at the lower part of the pumping assembly, and a control valve which can control the liquid in the pump chamber to be ejected from the liquid outlet channel is arranged on the side wall of the pump chamber. There is a ventilation port, and a reset spring is arranged in the pump chamber which can reset the pumping assembly after the pumping assembly is pressed down. A receiving tube and a tapered tube connected to the lower end of the receiving tube are arranged at the lower end of the pump chamber. The first liquid inlet is arranged at the lower end of the tapered tube, and a pump ball which can block the first liquid inlet is arranged between the receiving tube and the tapered tube. The lower end of the pump body is also connected to a sleeve which is sleeved on the outside of the receiving tube and the tapered tube, and a slot is arranged between the sleeve and the receiving tube. One end of the liquid introduction tube is inserted into the slot, and a first gap is arranged between the inner wall of the liquid introduction tube and the outer wall of the tapered tube.

[0008] In the above-mentioned pressing pump, a convex ring for limiting the escape of the drainage tube is provided on the inner wall of the lower part of the sleeve.

[0009] A pressing pump as described above, wherein a pumping channel is provided in the pump rod, the upper part of the pumping channel is communicated with the liquid outlet channel, the control valve includes a second liquid inlet arranged at the lower part of the pump rod and connecting the pumping channel with the pump chamber, the outer side of the pump rod is provided with a suction plug which can slide relative to it and seal the second liquid inlet, and the outer wall of the pump rod is provided with a driving structure which can drive the suction plug to slide.

[0010] A pressing pump as described above, the pump rod includes an upper pump rod and a lower pump rod connected to the lower part of the upper pump rod, the upper pump rod is provided with a first liquid channel, the second liquid inlet is provided on the lower pump rod, and the lower pump rod is also provided with a second liquid channel connected to the first liquid channel and the second liquid inlet, the first liquid channel and the second liquid channel together constitute a liquid pumping channel.

[0011] A pressing pump as described above, the driving structure includes an upper limit rib provided on the upper pump rod and located above the second liquid inlet, and a lower limit protrusion provided on the lower pump rod and located below the second liquid inlet, the upper limit rib and the lower limit protrusion form a sliding area for the suction plug to slide relative to the pump rod, and a second gap is provided between the suction plug and the lower pump rod for liquid to flow into the second liquid inlet, and when the lower end of the suction plug abuts against the lower limit protrusion, the suction plug and the lower limit protrusion are sealed with each other to close the second gap.

[0012] In the pressing pump as described above, a first clamping ring is provided on the outer wall of the upper end of the lower pump rod, and a first clamping groove for clamping the first clamping ring is provided at a position of the inner wall of the upper pump rod corresponding to the clamping ring.

[0013] In the pressing pump as described above, a spring clamp is provided at the lower part of the pump chamber, a spring clamp groove is provided at the lower end of the pump rod, one end of the return spring is arranged in the spring clamp groove, and the other end is arranged to abut against the spring clamp.

[0014] In a pressing pump as described above, the locking cover is provided with a receiving groove, the upper end of the pump body is inserted into the receiving groove, a second clamping ring is provided on the outer wall of the upper end of the pump body, a second clamping groove is provided on the inner wall of the receiving groove, and the second clamping ring is clamped in the second clamping groove.

[0015] In the pressing pump as described above, a connecting thread is provided on the outer wall of the lower part of the curved nozzle, and a screw-on thread capable of engaging with the connecting thread is provided on the inner wall of the locking cover.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] The lower end of the pump body is connected to a sleeve that is sleeved on the outside of the accommodating tube and the conical tube. A slot is provided between the sleeve and the accommodating tube. One end of the liquid introduction tube is inserted into the slot. A first gap is provided between the inner wall of the liquid introduction tube and the outer wall of the conical tube, so that the liquid introduction tube cannot directly exert a force on the conical tube when shaking, thereby making it difficult for the conical tube to deform. The pump ball and the conical tube have good sealing properties, and friction is generated between the inner wall of the slot and the outer wall of the liquid introduction tube, making it difficult for the liquid introduction tube to fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0019] Figure 1 It is a cross-sectional view of the utility model;

[0020] Figure 2 It is an exploded view of the utility model;

[0021] Figure 3 yes Figure 1 Enlarged view of part A in the middle;

[0022] Figure 4 yes Figure 1 Enlarged view of part B in the middle. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings:

[0024] like Figures 1 to 4 A pressing pump shown in the figure comprises a pump body 1 and a liquid introduction tube 2, wherein a pump chamber 11 is arranged in the pump body 1, a bottle locking cap 3 is connected to the pump body 1, a liquid pumping assembly is arranged in the pump chamber 11 which can move up and down therein so as to pump the liquid in the bottle upward, the liquid pumping assembly comprises a pump rod, a curved nozzle 4 which can drive the liquid pumping assembly to move up and down is connected to the upper end of the pump rod, a liquid outlet channel 41 is arranged in the curved nozzle 4, a locking cap 5 which can limit the liquid pumping assembly from being separated from the pump chamber 11 is arranged on the pump body 1, a control valve which can control the liquid in the pump chamber 11 to be ejected from the liquid outlet channel 41 is arranged at the lower part of the liquid pumping assembly, a ventilation port 112 is arranged on the side wall of the pump chamber 11, and the pump chamber 11 is provided with a plurality of air ports 112. A reset spring 6 is provided inside the pump body 1 which can reset the pumping assembly after it is pressed down. A receiving tube 71 and a tapered tube 73 connected to the lower end of the receiving tube 71 are provided at the lower end of the pump chamber 11. The first liquid inlet 111 is provided at the lower end of the tapered tube 73. A pump ball 72 which can block the first liquid inlet 111 is provided between the receiving tube 71 and the tapered tube 73. A sleeve 12 which is sleeved on the outside of the receiving tube 71 and the tapered tube 73 is further connected to the lower end of the pump body 1. A slot 121 is provided between the sleeve 12 and the receiving tube 71. One end of the liquid introduction tube 2 is inserted into the slot 121. A first gap 122 is provided between the inner wall of the liquid introduction tube 2 and the outer wall of the tapered tube 73.

[0025] In this case, a slot 121 is provided between the sleeve 12 and the accommodating tube 71, and one end of the drainage tube 2 is inserted into the slot 121. A first gap 122 is provided between the inner wall of the drainage tube 2 and the outer wall of the conical tube 73, so that the drainage tube 2 cannot directly exert a force on the conical tube 73 when shaking, thereby making it difficult for the conical tube 73 to deform. The pump ball 72 and the conical tube 73 have good sealing performance, and friction is generated between the inner wall of the slot 121 and the outer wall of the drainage tube 2, so that the drainage tube 2 is not easy to fall off.

[0026] In one embodiment, the pump body 1 , the sleeve 12 , the accommodating tube 71 and the tapered tube 73 are integrally injection molded.

[0027] In one embodiment, a protruding ring 123 for limiting the escape of the drainage tube 2 is provided on the inner wall of the lower part of the sleeve 12. The protruding ring 123 can apply a clamping force to the drainage tube 2 so that the drainage tube 2 is not easy to escape from the sleeve 12, wherein the protruding ring 123 is integrally injection-molded with the sleeve 12.

[0028] In one embodiment, a pumping channel is provided in the pump rod, the upper part of the pumping channel is communicated with the liquid outlet channel 41, the control valve includes a second liquid inlet 81 provided at the lower part of the pump rod and communicating the pumping channel with the pump chamber 11, a suction plug 82 is sleeved on the outer side of the pump rod, which can slide relative to the pump rod and seal the second liquid inlet 81, and a driving structure is provided on the outer wall of the pump rod to drive the suction plug 82 to slide. The pump rod includes an upper pump rod 83 and a lower pump rod 84 connected to the lower part of the upper pump rod 83, a first liquid channel 831 is provided on the upper pump rod 83, the second liquid inlet 81 is provided on the lower pump rod 84, and a second liquid channel 841 communicating with the first liquid channel 831 and the second liquid inlet 81 is further provided on the lower pump rod 84, the first liquid channel 831 and the second liquid channel 841 together constitute the pumping channel.

[0029] Specifically, a first snap ring 843 is provided on the outer wall of the upper end of the lower pump rod 84, and a first clamping groove 833 for clamping the first snap ring 843 is provided on the inner wall of the upper pump rod 83 at a position corresponding to the snap ring. Of course, the lower pump rod 84 can also be connected to the upper pump rod 83 by other connection methods such as threaded connection.

[0030] The above-mentioned driving structure includes an upper limit rib 832 provided on the upper pump rod 83 and located above the second liquid inlet 81, and a lower limit protrusion 842 provided on the lower pump rod 84 and located below the second liquid inlet 81. The upper limit rib 832 and the lower limit protrusion 842 form a sliding area for the suction plug 82 to slide relative to the pump rod. A second gap 85 is provided between the suction plug 82 and the lower pump rod 84 for liquid to flow into the second liquid inlet 81. When the lower end of the suction plug 82 abuts against the lower limit protrusion 842, the suction plug 82 and the lower limit protrusion 842 are sealed with each other to close the second gap 85.

[0031] In one embodiment, a spring clamp 13 is provided at the lower portion of the pump chamber 11, and a spring clamping groove 844 is provided at the lower end of the pump rod. One end of the reset spring 6 is arranged in the spring clamping groove 844, and the other end is arranged to abut against the spring clamp 13, so that the reset spring 6 is not easy to move and the reset is smoother.

[0032] In one embodiment, the locking cover 5 is provided with a receiving groove 51, the upper end of the pump body 1 is inserted into the receiving groove 51, a second clamping ring 113 is provided on the outer wall of the upper end of the pump body 1, a second clamping groove 511 is provided on the inner wall of the receiving groove 51, the second clamping ring 113 is clamped in the second clamping groove 511, and a third clamping ring 10 that can limit the locking bottle cover 3 from being separated from the pump body is also provided on the outer wall of the pump body 1, and a sealing gasket 20 is provided below the third clamping ring 10. Of course, the locking cover 5 can also be connected to the pump body 1 by other means such as buckles. The locking bottle cover 3 is provided with a first through hole 30 for inserting the locking cover 5, and a block 301 that limits the locking bottle cover 3 from passing through the third clamping ring 10 is provided on the hole wall of the first through hole 30, and the locking cover 5 is provided with a first through hole 50 for the pump rod to pass through.

[0033] In one embodiment, the lower outer wall of the curved spout 4 is provided with a connecting thread 42, and the inner wall of the locking cover 5, i.e., the hole wall of the first through hole 50, is provided with a screw thread 52 that can engage with the connecting thread 42. The curved spout 4 can be screwed and locked on the locking cover 5, effectively preventing the liquid in the bottle from being sprayed out due to accidental pressing.

Claims

1. A compression pump, characterized in that: The invention comprises a pump body (1) and a liquid inlet tube (2), wherein a pump chamber (11) is arranged in the pump body (1), a bottle locking cap (3) is connected to the pump body (1), a liquid pumping assembly is arranged in the pump chamber (11) and can move up and down therein so as to pump the liquid in the bottle upward, the liquid pumping assembly comprises a pump rod, the upper end of the pump rod is connected to a curved nozzle (4) which can drive the liquid pumping assembly to move up and down, a liquid outlet channel (41) is arranged in the curved nozzle (4), a locking cap (5) which can limit the liquid pumping assembly from being separated from the pump chamber (11) is arranged on the pump body (1), a control valve which can control the liquid in the pump chamber (11) to be ejected from the liquid outlet channel (41) is arranged at the lower part of the liquid pumping assembly, a ventilation port (112) is arranged on the side wall of the pump chamber (11), and a liquid pumping assembly is arranged in the pump chamber (11) ... A return spring (6) is provided at the lower end of the pump chamber (11) for returning the pump assembly to its original position after being pressed down. A receiving tube (71) and a tapered tube (73) connected to the lower end of the receiving tube (71) are provided at the lower end of the tapered tube (73). A first liquid inlet (111) is provided at the lower end of the tapered tube (73). A pump ball (72) capable of blocking the first liquid inlet (111) is provided between the receiving tube (71) and the tapered tube (73). The lower end of the pump body (1) is also connected to a sleeve (12) sleeved on the outside of the receiving tube (71) and the tapered tube (73). A slot (121) is provided between the sleeve (12) and the receiving tube (71). One end of the liquid introduction tube (2) is inserted into the slot (121). A first gap (122) is provided between the inner wall of the liquid introduction tube (2) and the outer wall of the tapered tube (73).

2. A pressing pump according to claim 1, characterized in that: A convex ring (123) for preventing the liquid guide tube (2) from falling out is provided on the inner wall of the lower part of the sleeve (12).

3. A pressing pump according to claim 1, characterized in that: A liquid extraction channel is provided in the pump rod, the upper part of which is communicated with the liquid outlet channel (41); the control valve comprises a second liquid inlet (81) provided at the lower part of the pump rod and communicating with the liquid extraction channel and the pump chamber (11); a suction plug (82) is sleeved on the outer side of the pump rod and can slide relative to the pump rod and can seal the second liquid inlet (81); and a driving structure is provided on the outer wall of the pump rod and can drive the suction plug (82) to slide.

4. A pressing pump according to claim 3, characterized in that: The pump rod comprises an upper pump rod (83) and a lower pump rod (84) connected to the lower part of the upper pump rod (83); the upper pump rod (83) is provided with a first liquid channel (831); the second liquid inlet (81) is provided on the lower pump rod (84); the lower pump rod (84) is also provided with a second liquid channel (841) connected to the first liquid channel (831) and the second liquid inlet (81); the first liquid channel (831) and the second liquid channel (841) together constitute a liquid pumping channel.

5. A pressing pump according to claim 4, characterized in that: The driving structure comprises an upper limit rib (832) provided on the upper pump rod (83) and located above the second liquid inlet (81), and a lower limit convex block (842) provided on the lower pump rod (84) and located below the second liquid inlet (81); a sliding area for the suction plug (82) to slide relative to the pump rod is formed between the upper limit rib (832) and the lower limit convex block (842); a second gap (85) for liquid to flow into the second liquid inlet (81) is provided between the suction plug (82) and the lower pump rod (84); when the lower end of the suction plug (82) abuts against the lower limit convex block (842), the suction plug (82) and the lower limit convex block (842) are sealed with each other, thereby closing the second gap (85).

6. A pressing pump according to claim 5, characterized in that: A first clamping ring (843) is provided on the outer wall of the upper end of the lower pump rod (84), and a first clamping groove (833) for clamping the first clamping ring (843) is provided at a position on the inner wall of the upper pump rod (83) corresponding to the clamping ring.

7. The compression pump according to claim 1, characterized in that: A spring clamping platform (13) is provided at the lower part of the pump chamber (11), a spring clamping groove (844) is provided at the lower end of the pump rod, one end of the return spring (6) is arranged in the spring clamping groove (844), and the other end is arranged to abut against the spring clamping platform (13).

8. The compression pump according to claim 1, characterized in that: The locking cover (5) is provided with a receiving groove (51), the upper end of the pump body (1) is inserted into the receiving groove (51), a second clamping ring (113) is provided on the outer wall of the upper end of the pump body (1), a second clamping groove (511) is provided on the inner wall of the receiving groove (51), and the second clamping ring (113) is clamped in the second clamping groove (511).

9. The compression pump according to claim 1, characterized in that: A connecting thread (42) is provided on the outer wall of the lower part of the curved nozzle (4), and a screw thread (52) capable of meshing with the connecting thread (42) is provided on the inner wall of the locking cover (5).